Delta coronavirus variant: scientists brace for impact.

  title={Delta coronavirus variant: scientists brace for impact.},
  author={E. Callaway},
The Rise and Fall of a Local SARS-CoV-2 Variant with the Spike Protein Mutation L452R
Emerging SARS-CoV-2 variants may threaten global vaccination efforts and the awaited reduction in outbreak burden. In this study, we report a novel variant carrying the L452R mutation that emergedExpand
Quantitative measurement of infectious virus in SARS-CoV-2 Alpha, Delta and Epsilon variants reveals higher infectivity (viral titer:RNA ratio) in clinical samples containing the Delta and Epsilon variants.
ABSTRACT Background Novel SARS-CoV-2 Variants of Concern (VoC) pose a challenge to controlling the COVID-19 pandemic. Previous studies indicate that clinical samples collected from individualsExpand
The SARS-CoV-2 Delta variant is poised to acquire complete resistance to wild-type spike vaccines
mRNA-based vaccines provide effective protection against most common SARS-CoV-2 variants. However, identifying likely breakthrough variants is critical for future vaccine development. Here, we foundExpand
The rise and fall of an emerging SARS-CoV-2 variant with the spike protein mutation L452R
This study demonstrates an independent, local emergence of a variant carrying a critical mutation, L452R, which may have the potential of becoming a variant of concern and emphasizes the importance of routine surveillance and detection of novel variants among efforts undertaken to prevent further disease spread. Expand
A closer look at U.S COVID-19 vaccination rates and the emergence of new SARS-CoV-2 variants: It's never late to do the right thing
According to the Center for Disease Control (CDC), 49.7% of the United States (U.S.) population has been fully vaccinated (165, 081, 416 million people) and 57.9% has received at least 1 dose (192,Expand
A data-driven model for COVID-19 pandemic – Evolution of the attack rate and prognosis for Brazil
We introduce a compartmental model SEIAHRV (Susceptible, Exposed, Infected, Asymptomatic, Hospitalized, Recovered, Vaccinated) with age structure for the spread of the SARAS-CoVExpand
An Experiment Evaluating the Impact of Large-Scale, High-Payoff Vaccine Regret Lotteries
We present a pre-registered experiment testing the effects of three, high-payoff (up to $50,000) vaccine regret lotteries in Philadelphia. In each drawing, residents of a randomly selectedExpand
Attack rate and the price of SARS-CoV-2 herd immunity in Brazil
A compartmental model with age structure is introduced to study the dynamics of the SARS-COV-2 pandemic and the evolution of the COVID-19 pandemic in the main Brazilian cities and compared to two good quality serological surveys. Expand
COVID-19 vaccine acceptance among healthcare workers in India: Results from a cross-sectional survey
Overall attitudes towards COVID-19 vaccination and preparedness were positive among HCWs in India, although acceptance was lower among healthier and younger HCWs, and data availability on vaccine safety and effectiveness, and cost considerations were important for acceptance. Expand
COVID-19 vaccines and decreased transmission of SARS-CoV-2
Some evidence is described on this important and current topic providing useful personal reflections on the effect of decreasing the probability of infection of vaccinated subjects compared to unvaccinated subjects. Expand


Rapid displacement of SARS-CoV-2 variant B.1.1.7 by B.1.617.2 and P.1 in the United States
It was showed that B.1.617.2 was growing faster in counties with a lower vaccination rate, which is consistent with reports from other countries and was rapidly being displaced and is no longer responsible for the majority of new cases. Expand